package com.zzxy.spring2.factory;

import com.zzxy.spring2.aspect.MyAspect;
import com.zzxy.spring2.service.IStudentService;
import com.zzxy.spring2.service.impl.StudentServiceImpl;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;

public class MyBaanFactory {
    public static IStudentService createStudentService() {
        //1,target class
        StudentServiceImpl studentServiceImpl = new StudentServiceImpl();
        //2,advice
        MyAspect myAspect = new MyAspect();
        //3.weaving
        IStudentService studentServiceProxy = (IStudentService) Proxy.newProxyInstance(MyBaanFactory.class.getClassLoader(), studentServiceImpl.getClass().getInterfaces(), new InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                myAspect.before();
                Object obj = method.invoke(studentServiceImpl, args);
                myAspect.after();
                return obj;
            }
        });
        return studentServiceProxy;
    }
}